如何使用php读取文件中的多个xml内容答案

【问题标题】：how to read the multiple xml contents in a file using php如何使用php读取文件中的多个xml内容
【发布时间】：2011-04-19 15:00:31
【问题描述】：

我正在处理这种 XML 序列文件，谁能建议我解析一下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE us-patent-grant SYSTEM "us-patent-grant-v42-2006-08-23.dtd" [ ]>
<name>ccccc</name>
<document-id>
<country>US</country>
<doc-number>D0629997</doc-number>
<kind>S1</kind>
<date>20110104</date>
</document-id>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE us-patent-grant SYSTEM "us-patent-grant-v42-2006-08-23.dtd" [ ]>
<name>dddd</name>
<document-id>
<country>US</country>
<doc-number>D0629998</doc-number>
<kind>S2</kind>
<date>20110104</date>
</document-id>

【问题讨论】：

你为什么会有这样的XML文件？
根据 XML 规范，您的文档看起来无效......多个相同的处理指令，没有唯一的根节点，afaik !DOCTYPE 不是有效的节点名称，它没有关闭......我怀疑有一个解析器，可以毫无怨言地接受它......
X-Ref: stackoverflow.com/q/10780560/367456

标签： php xml parsing

【解决方案1】：

这不是一个有效的 XML 文件。它看起来像是两个文件合而为一，但即使那样它也是无效的。假设这些是两个单独的文件，您可以先尝试“整理”它们。假设 $xml 是一个包含 xml 内容的字符串：

$xml = tidy_repair_string($xml, array(
    'output-xml' => true,
    'input-xml' => true
));

然后你可以在上面使用 SimpleXml：

$xml = new SimpleXmlElement($xml);

【讨论】：

嗨，谢谢你的回复。我有很多文件要像这样解析。你能解释更多细节吗？什么是整理？我如何阅读文件的内容？fread这种文件不能正常工作！

【解决方案2】：

我知道这个 XML 文件是从哪里来的，而且我觉得很奇怪 Google 会提供一些无效的 XML（除非他们只是简单地托管他们从其他地方获得的这个文件）。这个解析它的建议对我有用：How to parse an xml file with multiple xml declaration using PHP? (A concatenation of several XML files)

【讨论】：

【解决方案3】：

该文件包含一系列相互连接的 XML 文档。您需要注册一个 PHP 流包装器，它可以为您透明地划分文件，然后您可以单独处理每个文档，甚至可以流式处理。示例：

stream_wrapper_register('xmlseq', 'XMLSequenceStream');

$path = "xmlseq://zip://ipg140107.zip#ipg140107.xml";

while (XMLSequenceStream::notAtEndOfSequence($path)) {
    $reader = new XMLReader();
    $reader->open($path);
    // just consume the whole document
    while ($reader::next()) {
        XMLReaderNode::dump($reader);
    }
}

XMLSequenceStream::clean();

该流包装器是XMLReaderIterator library 的一部分，并且可以与 SimpleXMLElement 或 DOMDocument 一起使用，尽管对于较大的文件 XMLReader 更适合。

对于我在示例中采用的文件（http://storage.googleapis.com/patents/grant_full_text/2014/ipg140107.zip 来自 https://www.google.com/googlebooks/uspto-patents-grants-text.html），该序列中不同树的整体元素结构计数元素例如是：

\-us-patent-grant (473)
  |-us-bibliographic-data-grant (473)
  | |-publication-reference (473)
  | | \-document-id (473)
  | |   |-country (473)
  | |   |-doc-number (473)
  | |   |-kind (473)
  | |   \-date (473)
  | |-application-reference (473)
  | | \-document-id (473)
  | |   |-country (473)
  | |   |-doc-number (473)
  | |   \-date (473)
  | |-us-application-series-code (473)
  | |-us-term-of-grant (470)
  | | |-length-of-grant (450)
  | | |-disclaimer (18)
  | | | \-text (18)
  | | \-us-term-extension (20)
  | |-classification-locarno (450)
  | | |-edition (450)
  | | \-main-classification (450)
  | |-classification-national (473)
  | | |-country (473)
  | | |-main-classification (473)
  | | \-further-classification (143)
  | |-invention-title (473)
  | | \-i (12)
  | |-us-references-cited (458)
  | | \-us-citation (11000)
  | |   |-patcit (10265)
  | |   | \-document-id (10265)
  | |   |   |-country (10265)
  | |   |   |-doc-number (10265)
  | |   |   |-kind (9884)
  | |   |   |-name (9811)
  | |   |   \-date (10264)
  | |   |-category (10999)
  | |   |-classification-national (6309)
  | |   | |-country (6309)
  | |   | \-main-classification (6309)
  | |   |-nplcit (735)
  | |   | \-othercit (735)
  | |   |   |-sub (281)
  | |   |   |-i (7)
  | |   |   \-sup (1)
  | |   \-classification-cpc-text (1)
  | |-number-of-claims (472)
  | |-us-exemplary-claim (472)
  | |-us-field-of-classification-search (472)
  | | \-classification-national (8991)
  | |   |-country (8991)
  | |   |-main-classification (8991)
  | |   \-additional-info (1205)
  | |-figures (472)
  | | |-number-of-drawing-sheets (472)
  | | \-number-of-figures (472)
  | |-us-parties (472)
  | | |-us-applicants (472)
  | | | \-us-applicant (765)
  | | |   |-addressbook (765)
  | | |   | |-last-name (573)
  | | |   | |-first-name (573)
  | | |   | |-address (765)
  | | |   | | |-city (765)
  | | |   | | |-country (765)
  | | |   | | \-state (423)
  | | |   | \-orgname (192)
  | | |   \-residence (765)
  | | |     \-country (765)
  | | |-inventors (472)
  | | | \-inventor (969)
  | | |   \-addressbook (969)
  | | |     |-last-name (969)
  | | |     |-first-name (969)
  | | |     \-address (969)
  | | |       |-city (969)
  | | |       |-country (969)
  | | |       \-state (519)
  | | \-agents (429)
  | |   \-agent (500)
  | |     \-addressbook (500)
  | |       |-orgname (361)
  | |       |-address (500)
  | |       | \-country (500)
  | |       |-last-name (139)
  | |       \-first-name (139)
  | |-assignees (385)
  | | \-assignee (391)
  | |   |-addressbook (390)
  | |   | |-orgname (386)
  | |   | |-role (390)
  | |   | |-address (390)
  | |   | | |-city (355)
  | |   | | |-country (390)
  | |   | | \-state (192)
  | |   | |-last-name (4)
  | |   | \-first-name (4)
  | |   |-orgname (1)
  | |   \-role (1)
  | |-examiners (472)
  | | |-primary-examiner (472)
  | | | |-last-name (472)
  | | | |-first-name (472)
  | | | \-department (472)
  | | \-assistant-examiner (65)
  | |   |-last-name (65)
  | |   \-first-name (65)
  | |-us-related-documents (65)
  | | |-continuation-in-part (16)
  | | | \-relation (16)
  | | |   |-parent-doc (16)
  | | |   | |-document-id (16)
  | | |   | | |-country (16)
  | | |   | | |-doc-number (16)
  | | |   | | \-date (16)
  | | |   | |-parent-status (11)
  | | |   | \-parent-grant-document (5)
  | | |   |   \-document-id (5)
  | | |   |     |-country (5)
  | | |   |     |-doc-number (5)
  | | |   |     \-date (2)
  | | |   \-child-doc (16)
  | | |     \-document-id (16)
  | | |       |-country (16)
  | | |       \-doc-number (16)
  | | |-continuation (21)
  | | | \-relation (21)
  | | |   |-parent-doc (21)
  | | |   | |-document-id (21)
  | | |   | | |-country (21)
  | | |   | | |-doc-number (21)
  | | |   | | \-date (21)
  | | |   | |-parent-status (16)
  | | |   | \-parent-grant-document (5)
  | | |   |   \-document-id (5)
  | | |   |     |-country (5)
  | | |   |     |-doc-number (5)
  | | |   |     \-date (2)
  | | |   \-child-doc (21)
  | | |     \-document-id (21)
  | | |       |-country (21)
  | | |       \-doc-number (21)
  | | |-division (32)
  | | | \-relation (32)
  | | |   |-parent-doc (32)
  | | |   | |-document-id (32)
  | | |   | | |-country (32)
  | | |   | | |-doc-number (32)
  | | |   | | \-date (32)
  | | |   | |-parent-grant-document (24)
  | | |   | | \-document-id (24)
  | | |   | |   |-country (24)
  | | |   | |   |-doc-number (24)
  | | |   | |   \-date (1)
  | | |   | \-parent-status (8)
  | | |   \-child-doc (32)
  | | |     \-document-id (32)
  | | |       |-country (32)
  | | |       \-doc-number (32)
  | | \-related-publication (9)
  | |   \-document-id (9)
  | |     |-country (9)
  | |     |-doc-number (9)
  | |     |-kind (9)
  | |     \-date (9)
  | |-priority-claims (140)
  | | \-priority-claim (182)
  | |   |-country (182)
  | |   |-doc-number (182)
  | |   \-date (182)
  | |-us-sir-flag (1)
  | |-classifications-ipcr (23)
  | | \-classification-ipcr (24)
  | |   |-ipc-version-indicator (24)
  | |   | \-date (24)
  | |   |-classification-level (24)
  | |   |-section (24)
  | |   |-class (24)
  | |   |-subclass (24)
  | |   |-main-group (24)
  | |   |-subgroup (24)
  | |   |-symbol-position (24)
  | |   |-classification-value (24)
  | |   |-action-date (24)
  | |   | \-date (24)
  | |   |-generating-office (24)
  | |   | \-country (24)
  | |   |-classification-status (24)
  | |   \-classification-data-source (24)
  | |-us-botanic (21)
  | | |-latin-name (21)
  | | \-variety (21)
  | \-classifications-cpc (1)
  |   \-main-cpc (1)
  |     \-classification-cpc (1)
  |       |-cpc-version-indicator (1)
  |       | \-date (1)
  |       |-section (1)
  |       |-class (1)
  |       |-subclass (1)
  |       |-main-group (1)
  |       |-subgroup (1)
  |       |-symbol-position (1)
  |       |-classification-value (1)
  |       |-action-date (1)
  |       | \-date (1)
  |       |-generating-office (1)
  |       | \-country (1)
  |       |-classification-status (1)
  |       |-classification-data-source (1)
  |       \-scheme-origination-code (1)
  |-drawings (472)
  | \-figure (3033)
  |   \-img (3033)
  |-description (472)
  | |-description-of-drawings (472)
  | | |-p (3955)
  | | | |-figref (4478)
  | | | |-b (86)
  | | | \-i (6)
  | | \-heading (22)
  | |-heading (162)
  | \-p (340)
  |   |-figref (15)
  |   |-b (250)
  |   |-i (146)
  |   |-ul (96)
  |   | \-li (444)
  |   |   |-ul (215)
  |   |   | \-li (273)
  |   |   |   |-ul (199)
  |   |   |   | \-li (1192)
  |   |   |   |   |-i (1219)
  |   |   |   |   |-b (1)
  |   |   |   |   |-sup (10)
  |   |   |   |   \-sub (2)
  |   |   |   \-i (11)
  |   |   |-sup (2)
  |   |   \-i (26)
  |   |-tables (15)
  |   | \-table (15)
  |   |   \-tgroup (49)
  |   |     |-colspec (175)
  |   |     |-thead (15)
  |   |     | \-row (27)
  |   |     |   \-entry (51)
  |   |     \-tbody (49)
  |   |       \-row (291)
  |   |         \-entry (997)
  |   |           \-sup (28)
  |   \-sup (2)
  |-us-claim-statement (472)
  |-claims (472)
  | \-claim (476)
  |   \-claim-text (476)
  |     |-figref (1)
  |     |-claim-text (5)
  |     |-claim-ref (4)
  |     \-i (15)
  \-abstract (22)
    \-p (22)
      |-i (27)
      \-ul (2)
        \-li (2)
          \-ul (2)
            \-li (11)

【讨论】：